Pith Number

pith:26LQ5SKP

pith:2017:26LQ5SKPFAHKQRCUDQ2KC7U65J

not attested not anchored not stored refs pending

Proof Theory and Ordered Groups

Almudena Colacito, George Metcalfe

arxiv:1708.00640 v1 · 2017-08-02 · math.LO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{26LQ5SKPFAHKQRCUDQ2KC7U65J}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:38:45.147528Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7970ec94f280ea844541c34a17e9eea7b5f2376537d58b9a5924349d5281f33

Aliases

arxiv: 1708.00640 · arxiv_version: 1708.00640v1 · doi: 10.48550/arxiv.1708.00640 · pith_short_12: 26LQ5SKPFAHK · pith_short_16: 26LQ5SKPFAHKQRCU · pith_short_8: 26LQ5SKP

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/26LQ5SKPFAHKQRCUDQ2KC7U65J \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: d7970ec94f280ea844541c34a17e9eea7b5f2376537d58b9a5924349d5281f33

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "92628dbef298bfb766e0e14dd7a6f470cec7db3b88399497209d2e563c022c63",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2017-08-02T08:22:58Z",
    "title_canon_sha256": "a933cedf044d59249024f2ca0cb09b80d4576feba501f3bac9edbdb3a3aa0257"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.00640",
    "kind": "arxiv",
    "version": 1
  }
}